Interlocking flashing



Oct. 9, 1934. I J SQBEL 1,975,874

INTERLOCKING FLASHING Filed April 20. 1933 Patented Oct. 9, 1934 UNITED STATES PATENT OFFICE INTERLOCKIN G FLASHING Application April 20, 1933, Serial No. 666,984

10 Claims.

This invention 7 relates to improvements in flashing, being particularly directed to an interlocking wall flashing applied in masonry.

Broadly, it is an object of this invention to provide for a novel form of flashing, each individual flashing strip of which comprises alternate corrugated sections, between which are disposed dished'flat sections, the adjacent flat sections being dished in opposite directions and disposed in parallel but'different transverse planes.

' Further, it is an object of this invention to provide for an interlocking flashing, the individual flashing strips of which are composed of strips of stamped metal having alternate corrugated sections between which are disposed dished flat sections, the adjacent flashing strips being interlocked by the superimposition of the corrugated sections formed at the extremities thereof.

Still further, it is an object of this invention to provide for a novel form of interlocking flashing, comprising individual flashing strips having alternate corrugated sections, between which are disposed dished flat sections, adjacent dished sections being parallel but in different transverse planes, the corrugated sections and the dished sections serving to bond the flashing from horizontal movement in the mortar, there being disposed in the hollow of the respective dished sections bonding or keying means in the form of dished elements which have projections extending above the surface of the dished sections, and which, on account of their shape and formation, provide for a bond in the mortar which prevent lateral, longitudinal, or vertical displacement'of the flashing in the mortar.

Still further, it is an object of this invention to provide for a simple overlapping arrangement with respect to adjacent flashing strips, such overlapping being provided by the superimposition of the corrugated sections formed on the extremities of the respective flashing strips, such arjrangement having the advantage that when the interlocking flashing strips are bent transversely of their length at an end thereof, there is substantially no flattening of the corrugations at the bend, whereby any water that may penetrate between the interlocking corrugated sections of the flashing will not be imprisoned within the ridges or valleys between the respective corrugations, but will be permitted toflow laterally along the valleys and out of the flashing beyond the bend at the downward transverse section thereof.

Still further, it is an object of this invention to provide for a novel form of keying or bonding elements, in conjunction with the corrugated and dished flat sections of the flashing, such keying or bonding elements being in the form of dished stampings disposed as to project upwardly or downwardly with respect to the dished flat sections, such projections serving to provide for bonding to prevent movement in any direction of the flashing.

These and other advantages, capabilities and features of the invention will appear from the sub joined detailed description of one specific em-- bodiment thereof illustrated in the accompanying drawing, in which Figure 1 is a plan View of a plurality of interlocked flashing strips.

Figure 2 is a front elevation in section taken along lines 2-2 of Figure 1.

Figure 3 is an end View in section taken along lines 3--3 of Figure 2.

Figure 4 is a plan view of a modified form of flashing strip.

Figure 5 is a front view in section taken along lines '55 of Figure 4.

Referring to the reference characters in the drawing, numeral 10 represents a flashing strip comprising of alternate corrugated sections 11 and flat dished sections 12, the respective sections being usually from three to flve inches in width.

As shown in Figure 2, the flat sections are dished and adjacent flat sections are parallel to one another and disposed in diiferent transverse planes, the alternate flat sections being in the same plane. Each of the flat sections has disposed therein within the hollow portion thereof one or more keying or bonding elements 13 which, as shown in Figure 2, comprise dished stampings or the like, which are fastened thereto as by rivets 14, although it is within the province of this invention to fasten the keying or bonding means by any other well-known expedient. These keying or bonding elements 13 are so formed as to have upstanding walls 15 having lateral projections 16 .disposed substantially along the perimeter-thereof, whereby, as shown in Figure 2, the mortar in the course of masonry construction may be dis posed along such walls and under such projections 50, as to lock the flashing from vertical displacement, the angular wall formation of the element 13 having the further purpose of bonding the flashing from horizontal or lateral displacement.

-As shown in Figures 1 and 2, the ends of each of the flashing strips are formed of similar corrugated sections, so that adjacent flashing strips may be interlocked by means of the superimposition of one corrugated section above the other, the ridges and valleys of the respective corrugated sections being symmetrical and fitting one over the other so as to form a positive substantially Wa,t1tight engagement.

-' being within the province of this invention, and

usually the practice, only tobend the flashing downwardly.

When the flashing is bent transversely at an end thereof, particularly at the interlocked sections thereof, such sections, due to the corrugated formation, are not flattened so that water that may be imprisoned between the superimposed corrugated sections will pass between the two along the valleys thereof horizontally and thence down the valleys thereof transversely beyond the bent portion thereof, thus eliminating the retention of water in pockets, there being a slight space between the ridges and valleysor the respective interlocking corrugated sections, sufficient for the flow of water, as shown in Figure 3.

Referring further to Figures 4 and'5, a modified form of keying or bonding element is shown,

such element 1'7 comprising a dished'circular disk which is riveted as at 18 to the hollow flatsection of the flashing, such circular disk having an upstanding circular wall 19 and a lateral peripheral rim 20, as shown in Figure 5, which wall and rim construction serve to bond the flashing with the mortar to prevent lateral, longitudinal, and vertical displacement of the flashing within the mortar.

Although the bonding elements 13 and 17 have I been herein shown as being substantially diamond or circular shaped, it is within the province of this invention to provide any form of element, so long as it has an upstanding wall surface, and a lateral projection, which will serve to bond the mortar with the flashing and to prevent a longitudinal, lateral and vertical displacement of the flashing, in conjunction with the longitudinal bonding between the flashing and the mortar, which is provided by the corrugated and the dished flashing sections.

It is obvious that the interlocking elements being formed in the nature of corrugations of the type indicated, the bending of the flashing to form transverse portions, as indicated in Figure 3, will not in any way flatten the corrugated sections at the bend, so that a passageway for water is presented along the horizontal and down the vertical portions of the flashing. Further, since there is no bonding or flattening of either of the corrugated sections which are superimposed one upon the other, the same are capable of expansion and contraction in the same proportion and relation.

It is obvious that various changes and modifications may be made to the details of construction without departing from the general spirit of the invention as set forth in the appended claims.

I claim:

1. A through-wall flashing of the class described consisting of a continuous strip of sheet metal in the form of alternate corrugated and non-corrugated sections, the alternate noncorrugated sections having keying elements extending in opposite directions disposed therein.

2. A through-wall flashing of the class described consisting of a continuous strip of sheet metal in the form of alternate corrugated andnoncorrugated sections, the respective corrugated sections being in the same transverse plane, and the adjacent non-corrugated sections being in different transverse planes, the alternate non-corrugated sections being in the same transverse plane.

3. A through-wall flashing of the class described consisting of a continuous strip of sheet metal in the form of alternate corrugated and non-corrugated sections, the respective corrugated sections being in the same transverse plane,

and the adjacent non-corrugated sections being in difierent transverse planes, the alternate noncorrugated sections being in the same transverse plane, and keying elements disposed in said noncorrugated sections.

4. A through-wall flashing of the class described consisting of a continuous strip of sheet metal in the'form of alternate corrugated and non-corrugated sections, the respective corrugated sections being in the same transverse plane, and the adjacent non-corrugated sections being in difierent transverse planes, the alternate noncorrugated sectionsbeing in the same transverse plane, and keying elements disposed in said noncorrugated sections, said keying elements being dished and having upstanding walls and lateral projections to bond the flashing from movement in any direction. 7.

5. A through-wall flashing of the class described consisting of a continuous strip of sheett metal in the form of alternate corrugated and dished flat sections, adjacent dished sections being in diiferent transverse planes, alternate dished" sections being in the same transverse plane.

6. A through-wall flashing of the class devCIOO scribed consisting of a continuous strip of sheet metal stamped to form alternate corrugated and dished substantially flat sections, adjacent dished sections being in different transverse planes, alternate dished sections being in the same transi verse planes, and keying elements disposed within and having surfaces projecting from the hollow portions or" the dished sections.

7. In an interlocking through-wall flashing of the class described consisting of a plurality of continuous strips of sheet metal stamped to form alternate corrugated and dished substantially flat sections, adjacent dished sections being in different transverse planes, alternate dished sections being in the same transverse plane, adjacent flashing sheets being interlocked by superimposition of corrugated end sections of said flashing sheets.

8. In an interlocking through-wall flashing of the class described consisting of a plurality of continuous strips of sheet metal stamped to form alternate corrugated and dished substantially flat sections, adjacent dished sections being in difierent transverse planes, alternate dished sections being in the same transverse plane, and a transversely bent flange at one end of said strip.

9. In an interlocking through-wall flashing of the class described consisting of a plurality of continuous strips of sheet metal stamped to form alternate corrugated and dished substantially flat 3 sections, adjacent dished sections being in difr'erent transverse planes, alternated dished sections being in the same transverse plane, and keying means disposed in said dished sections comprising elements having upstanding walls and lateral projections to bond the flashing from movement in any direction.

10. In an interlocking through-wall flashing of the class described consisting of a plurality of continuous strips of sheet metal stamped to form alternate corrugated and dished substantially flat sections, adjacent dished sections being in different transverse planes, alternate dished sections being in the same transverse plane, the said strips being bent transversely on at least one edge thereof, and dished keying elements within and having surfaces projecting from the surface of the dished sections, to bond the flashing from movement in any direction.

JOSEPH SOBEL. 15g 

